Evaluation of mean retinal sensitivity using MP-1 microperimeter among patients with diabetic macular edema before and after laser photocoagulation treatment.

MedLine Citation:

PMID:
23303431
Owner:
NLM
Status:
Publisher

Abstract/OtherAbstract:

INTRODUCTION Diabetic macular edema is a common cause of visual acuity deterioration among patients with diabetes. Laser photocoagulation is a still most common treatment techniques of diabetic retinopathy and diabetic macular edema. OBJECTIVES To assess mean retinal sensitivity among patients with diabetic macular edema before and after laser photocoagulation treatment. Additional aim was to estimate best corrected visual acuity, retinal thickness in macula before and after treatment. PATIENTS AND METHODS A research included 30 patients, 35 eyes with diabetic macular edema (DME). Patients average age was 61.9 ± 4.8 years. 22 patients were treated with insulin and 8 with oral antidiabetics. Laser photocoagulation in macular area was performed using Pascal laser. Best corrected visual acuity (BCVA), mean central retinal sensitivity (MS), and retinal thickness in macula, taking into account a division into 9-segments, were measured. Measurements were performed before laser treatment and consecutively one, three, six months after. Mean sensitivity was assessed with MP-1 microperimeter and macular thickness with Optical Coherence Tomography (Stratus OCT). RESULTS Statistical analysis didn't reveal significant difference between BCVA and MS measurements in analyzed group before and after laser treatment. Gained measurements analysis of mean central retinal thickness disclosed significant macular edema decrease in particular segments one, three and six months after photocoagulation treatment. CONCLUSIONS Diabetic macular edema photocoagulation with Pascal laser doesn't result in significant changes, either in central retinal sensitivity, or in visual acuity. Laser treatment among patients with DME has significant influence on central retinal edema decrease. BCVA reveals positive correlation with MS before and after treatment.